lvm2's MD v1.0 superblock detection doesn't work at all (because it
doesn't use v1 sb offsets).
I've tested the attached patch to work on MDs with v0.90.0, v1.0,
v1.1, and v1.2 superblocks.
please advise, thanks.
Mike
Index: lib/device/dev-md.c
On Fri, 2007-10-19 at 05:23 -0700, Yuri Tikhonov wrote:
Hello Dan,
Hi Yuri, sorry it has taken me so long to get back to you...
I have a suggestion regarding the async_tx_find_channel() procedure.
First, a little introduction. Some processors (e.g. ppc440spe) have several
DMA
Louis-David Mitterrand wrote:
On Tue, Oct 09, 2007 at 01:48:50PM +0400, Michael Tokarev wrote:
There still is - at least for ext[23]. Even offline resizers
can't do resizes from any to any size, extfs developers recommend
to recreate filesystem anyway if size changes significantly.
I'm too
Alberto Alonso wrote:
On Thu, 2007-10-18 at 17:26 +0200, Goswin von Brederlow wrote:
Mike Accetta [EMAIL PROTECTED] writes:
What I would like to see is a timeout driven fallback mechanism. If
one mirror does not return the requested data within a certain time
(say 1 second) then
John Stoffel wrote:
Why do we have three different positions for storing the superblock?
Why do you suggest changing anything until you get the answer to this
question? If you don't understand why there are three locations, perhaps
that would be a good initial investigation.
Clearly the
Doug Ledford wrote:
On Fri, 2007-10-19 at 23:23 +0200, Iustin Pop wrote:
On Fri, Oct 19, 2007 at 02:39:47PM -0400, John Stoffel wrote:
And if putting the superblock at the end is problematic, why is it the
default? Shouldn't version 1.1 be the default?
In my opinion, having
John Stoffel wrote:
Michael == Michael Tokarev [EMAIL PROTECTED] writes:
Michael Doug Ledford wrote:
Michael []
1.0, 1.1, and 1.2 are the same format, just in different positions on
the disk. Of the three, the 1.1 format is the safest to use since it
won't allow you to
Justin Piszcz wrote:
On Fri, 19 Oct 2007, John Stoffel wrote:
Justin == Justin Piszcz [EMAIL PROTECTED] writes:
Justin On Fri, 19 Oct 2007, John Stoffel wrote:
So,
Is it time to start thinking about deprecating the old 0.9, 1.0 and
1.1 formats to just standardize on the 1.2 format?
On Tue, 2007-10-23 at 19:03 -0400, Bill Davidsen wrote:
John Stoffel wrote:
Why do we have three different positions for storing the superblock?
Why do you suggest changing anything until you get the answer to this
question? If you don't understand why there are three locations,
On Tue, 2007-10-23 at 21:21 +0200, Michal Soltys wrote:
Doug Ledford wrote:
Well, first I was thinking of files in the few hundreds of megabytes
each to gigabytes each, and when they are streamed, they are streamed at
a rate much lower than the full speed of the array, but still at a
On Sat, 2007-10-20 at 22:24 +0400, Michael Tokarev wrote:
John Stoffel wrote:
Michael == Michael Tokarev [EMAIL PROTECTED] writes:
As Doug says, and I agree strongly, you DO NOT want to have the
possibility of confusion and data loss, especially on bootup. And
There are different point
On Mon, 2007-10-22 at 16:39 -0400, John Stoffel wrote:
I don't agree completely. I think the superblock location is a key
issue, because if you have a superblock location which moves depending
the filesystem or LVM you use to look at the partition (or full disk)
then you need to be even more
On Tue, Oct 23, 2007 at 11:32:56AM -0400, Mike Snitzer wrote:
I've tested the attached patch to work on MDs with v0.90.0, v1.0,
v1.1, and v1.2 superblocks.
I'll apply this, thanks, but need to add comments (or reference) to explain
what the hard-coded numbers are:
sb_offset = (size -
On 10/23/07, Alasdair G Kergon [EMAIL PROTECTED] wrote:
On Tue, Oct 23, 2007 at 11:32:56AM -0400, Mike Snitzer wrote:
I've tested the attached patch to work on MDs with v0.90.0, v1.0,
v1.1, and v1.2 superblocks.
I'll apply this, thanks, but need to add comments (or reference) to explain
On Tue, 2007-10-23 at 18:45 -0400, Bill Davidsen wrote:
I'm not sure the timeouts are the problem, even if md did its own
timeout, it then needs a way to tell the driver (or device) to stop
retrying. I don't believe that's available, certainly not everywhere,
and anything other than
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